Scholarlink

<p>The control of soil-borne diseases is crucial for ensuring global food security. Here, we investigate the impact of the root-knot nematode (<i>Meloidogyne</i>) on banana continuous cropping over a period of 11 years. The results show significant root infestation initially, but disease incidence declined markedly from the 7th cropping year onwards. Soil community profiling revealed that this intriguing onset of nematode suppressiveness was associated with changes in free-living nematode populations and rhizosphere microbiome composition. Rhizosphere microbiome analyses and strain isolation pinpointed <i>Bacillus velezensis</i> as a keystone taxon in soil suppressiveness to <i>Meloidogyne</i>. Genomics, metabolomics and bioassays validated the suppressive effects of <i>B. velezensis</i> against <i>Meloidogyne</i> and identified the siderophore bacillibactin as key metabolite with repellent and nematicidal activities. By integrating long-term field studies with multi-omics approaches, this study uncovered co-occurring increases in specific rhizobacterial genera and free-living nematodes associated with reduced root-parasitic nematode populations, offering valuable insights for sustainable agriculture.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Siderophore-producing Bacillus and free-living nematodes are associated with soil suppressiveness to banana root-knot nematodes

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月12日

查看全文
  • Qiaofang Lu,
  • Kunguang Wang,
  • Shaohua Gu,
  • Jing Ma,
  • Dongming Cui,
  • Zhiguang Chi,
  • Baoshen Li,
  • Xiaoyu Zai,
  • Nanqi Wang,
  • Tianqi Wang,
  • Zhechao Dou,
  • Fusuo Zhang,
  • Stefan Geisen,
  • Jos M. Raaijmakers,
  • Chunxu Song,
  • Yuanmei Zuo

摘要

The control of soil-borne diseases is crucial for ensuring global food security. Here, we investigate the impact of the root-knot nematode (Meloidogyne) on banana continuous cropping over a period of 11 years. The results show significant root infestation initially, but disease incidence declined markedly from the 7th cropping year onwards. Soil community profiling revealed that this intriguing onset of nematode suppressiveness was associated with changes in free-living nematode populations and rhizosphere microbiome composition. Rhizosphere microbiome analyses and strain isolation pinpointed Bacillus velezensis as a keystone taxon in soil suppressiveness to Meloidogyne. Genomics, metabolomics and bioassays validated the suppressive effects of B. velezensis against Meloidogyne and identified the siderophore bacillibactin as key metabolite with repellent and nematicidal activities. By integrating long-term field studies with multi-omics approaches, this study uncovered co-occurring increases in specific rhizobacterial genera and free-living nematodes associated with reduced root-parasitic nematode populations, offering valuable insights for sustainable agriculture.